<?php
class Smtp
{
		/* Public Variables */
		var $smtp_port;
		var $time_out;
		var $host_name;
		var $log_file;
		var $relay_host;
		var $debug;
		var $auth;
		var $user;
		var $pass;

		/* Private Variables */
		var $sock;

		/* Constractor */
		function __construct($config = array())
		{
			$this->debug = FALSE;
			$this->smtp_port = $config['port'];
			$this->relay_host = $config['server'];
			$this->time_out = 30; //is used in fsockopen()
			#
			$this->auth = $config['auth'];//auth
			$this->user = $config['user'];
			$this->pass = $config['pass'];

			#
			$this->host_name = "localhost"; //is used in HELO command
			$this->log_file ="";

			$this->sock = FALSE;
		}

		/* Main Function */
		function sendmail($to, $from, $subject = "", $body = "", $mailtype, $cc = "", $bcc = "", $additional_headers = "")
		{
			$mail_from = $this->get_address($this->strip_comment($from));
			$body = ereg_replace("(^|(\r\n))(\\.)", "\\1.\\3", $body);
			$header .= "MIME-Version:1.0\r\n";
			if($mailtype=="HTML"){
				$header .= "Content-Type:text/html;charset=utf-8\r\n";
			}
			$header .= "To: ".$to."\r\n";
			if ($cc != "") {
				$header .= "Cc: ".$cc."\r\n";
			}
			$header .= "From: $from<".$from.">\r\n";
			$header .= "Subject: ".$subject."\r\n";
			$header .= $additional_headers;
			$header .= "Date: ".date("r")."\r\n";
			$header .= "X-Mailer:By Redhat (PHP/".phpversion().")\r\n";
			list($msec, $sec) = explode(" ", microtime());
			$header .= "Message-ID: <".date("YmdHis", $sec).".".($msec*1000000).".".$mail_from.">\r\n";
			$TO = explode(",", $this->strip_comment($to));

			if ($cc != "") {
				$TO = array_merge($TO, explode(",", $this->strip_comment($cc)));
			}

			if ($bcc != "") {
				$TO = array_merge($TO, explode(",", $this->strip_comment($bcc)));
			}

			$sent = TRUE;
			foreach ($TO as $rcpt_to) {
				$rcpt_to = $this->get_address($rcpt_to);
				if (!$this->smtp_sockopen($rcpt_to)) {
					$this->log_write("Error: Cannot send email to ".$rcpt_to."\n");
					$sent = FALSE;
					continue;
				}
				if ($this->smtp_send($this->host_name, $mail_from, $rcpt_to, $header, $body)) {
					$this->log_write("E-mail has been sent to <".$rcpt_to.">\n");
				} else {
					$this->log_write("Error: Cannot send email to <".$rcpt_to.">\n");
					$sent = FALSE;
				}
				fclose($this->sock);
				$this->log_write("Disconnected from remote host\n");
			}
			//echo "<br>";
			//echo $header;
			return $sent;
		}

		/* Private Functions */

		function smtp_send($helo, $from, $to, $header, $body = "")
		{
		if (!$this->smtp_putcmd("HELO", $helo)) {
		return $this->smtp_error("sending HELO command");
		}
		#auth
		if($this->auth){
		if (!$this->smtp_putcmd("AUTH LOGIN", base64_encode($this->user))) {
		return $this->smtp_error("sending HELO command");
		}

		if (!$this->smtp_putcmd("", base64_encode($this->pass))) {
		return $this->smtp_error("sending HELO command");
		}
		}
		#
		if (!$this->smtp_putcmd("MAIL", "FROM:<".$from.">")) {
		return $this->smtp_error("sending MAIL FROM command");
		}

		if (!$this->smtp_putcmd("RCPT", "TO:<".$to.">")) {
		return $this->smtp_error("sending RCPT TO command");
		}

		if (!$this->smtp_putcmd("DATA")) {
		return $this->smtp_error("sending DATA command");
		}

		if (!$this->smtp_message($header, $body)) {
		return $this->smtp_error("sending message");
		}

		if (!$this->smtp_eom()) {
		return $this->smtp_error("sending <CR><LF>.<CR><LF> [EOM]");
		}

		if (!$this->smtp_putcmd("QUIT")) {
		return $this->smtp_error("sending QUIT command");
		}

		return TRUE;
		}

		function smtp_sockopen($address)
		{
		if ($this->relay_host == "") {
		return $this->smtp_sockopen_mx($address);
		} else {
		return $this->smtp_sockopen_relay();
		}
		}

		function smtp_sockopen_relay()
		{
		$this->log_write("Trying to ".$this->relay_host.":".$this->smtp_port."\n");
		$this->sock = @fsockopen($this->relay_host, $this->smtp_port, $errno, $errstr, $this->time_out);
		if (!($this->sock && $this->smtp_ok())) {
		$this->log_write("Error: Cannot connenct to relay host ".$this->relay_host."\n");
		$this->log_write("Error: ".$errstr." (".$errno.")\n");
		return FALSE;
		}
		$this->log_write("Connected to relay host ".$this->relay_host."\n");
		return TRUE;;
		}

		function smtp_sockopen_mx($address)
		{
		$domain = ereg_replace("^.+@([^@]+)$", "\\1", $address);
		if (!@getmxrr($domain, $MXHOSTS)) {
		$this->log_write("Error: Cannot resolve MX \"".$domain."\"\n");
		return FALSE;
		}
		foreach ($MXHOSTS as $host) {
		$this->log_write("Trying to ".$host.":".$this->smtp_port."\n");
		$this->sock = @fsockopen($host, $this->smtp_port, $errno, $errstr, $this->time_out);
		if (!($this->sock && $this->smtp_ok())) {
		$this->log_write("Warning: Cannot connect to mx host ".$host."\n");
		$this->log_write("Error: ".$errstr." (".$errno.")\n");
		continue;
		}
		$this->log_write("Connected to mx host ".$host."\n");
		return TRUE;
		}
		$this->log_write("Error: Cannot connect to any mx hosts (".implode(", ", $MXHOSTS).")\n");
		return FALSE;
		}

		function smtp_message($header, $body)
		{
		fputs($this->sock, $header."\r\n".$body);
		$this->smtp_debug("> ".str_replace("\r\n", "\n"."> ", $header."\n> ".$body."\n> "));

		return TRUE;
		}

		function smtp_eom()
		{
		fputs($this->sock, "\r\n.\r\n");
		$this->smtp_debug(". [EOM]\n");

		return $this->smtp_ok();
		}

		function smtp_ok()
		{
		$response = str_replace("\r\n", "", fgets($this->sock, 512));
		$this->smtp_debug($response."\n");

		if (!ereg("^[23]", $response)) {
		fputs($this->sock, "QUIT\r\n");
		fgets($this->sock, 512);
		$this->log_write("Error: Remote host returned \"".$response."\"\n");
		return FALSE;
		}
		return TRUE;
		}

		function smtp_putcmd($cmd, $arg = "")
		{
		if ($arg != "") {
		if($cmd=="") $cmd = $arg;
		else $cmd = $cmd." ".$arg;
		}

		fputs($this->sock, $cmd."\r\n");
		$this->smtp_debug("> ".$cmd."\n");

		return $this->smtp_ok();
		}

		function smtp_error($string)
		{
		$this->log_write("Error: Error occurred while ".$string.".\n");
		return FALSE;
		}

		function log_write($message)
		{
		$this->smtp_debug($message);

		if ($this->log_file == "") {
		return TRUE;
		}

		$message = date("M d H:i:s ").get_current_user()."[".getmypid()."]: ".$message;
		if (!@file_exists($this->log_file) || !($fp = @fopen($this->log_file, "a"))) {
		$this->smtp_debug("Warning: Cannot open log file \"".$this->log_file."\"\n");
		return FALSE;
		}
		flock($fp, LOCK_EX);
		fputs($fp, $message);
		fclose($fp);

		return TRUE;
		}

		function strip_comment($address)
		{
		$comment = "\\([^()]*\\)";
		while (ereg($comment, $address)) {
		$address = ereg_replace($comment, "", $address);
		}

		return $address;
		}

		function get_address($address)
		{
		$address = ereg_replace("([ \t\r\n])+", "", $address);
		$address = ereg_replace("^.*<(.+)>.*$", "\\1", $address);

		return $address;
		}

		function smtp_debug($message)
		{
		if ($this->debug) {
		echo $message."<br>";
		}
		}

		function get_attach_type($image_tag) { //

		$filedata = array();

		$img_file_con=fopen($image_tag,"r");
		unset($image_data);
		while ($tem_buffer=AddSlashes(fread($img_file_con,filesize($image_tag))))
		$image_data.=$tem_buffer;
		fclose($img_file_con);

		$filedata['context'] = $image_data;
		$filedata['filename']= basename($image_tag);
		$extension=substr($image_tag,strrpos($image_tag,"."),strlen($image_tag)-strrpos($image_tag,"."));
		switch($extension){
		case ".gif":
		$filedata['type'] = "image/gif";
		break;
		case ".gz":
		$filedata['type'] = "application/x-gzip";
		break;
		case ".htm":
		$filedata['type'] = "text/html";
		break;
		case ".html":
		$filedata['type'] = "text/html";
		break;
		case ".jpg":
		$filedata['type'] = "image/jpeg";
		break;
		case ".tar":
		$filedata['type'] = "application/x-tar";
		break;
		case ".txt":
		$filedata['type'] = "text/plain";
		break;
		case ".zip":
		$filedata['type'] = "application/zip";
		break;
		default:
		$filedata['type'] = "application/octet-stream";
		break;
		}


		return $filedata;
		}

}
?>